how could be v4 key convert to v6 key?
Do you still have avast 4.8 installed ?
If You install avast 6 on top of the 4.8 it will read the license info from the 4.8
You don’t say what version of avast 4 you have, 4.8 Home or Pro ?
I would recommend that you do a clean install of avast 6:
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Download the latest version of avast, 6.0.1367 see download locations below and save it to your HDD, somewhere you can find it again (if you didn’t save your last download). Use that when you reinstall.
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Download the avast! Uninstall Utility, aswClear.exe find it here and save it to your HDD (it has uninstall tools for both 4.x and higher).
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- Now uninstall avast! (using add remove programs, if you can’t do that start from the next step), reboot.- 2. run the avast! Uninstall Utility from safe mode, for 4.8, once complete reboot into normal mode.- 3. install the latest version, reboot.
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Direct download locations (ignore the fact it mentions 5 in the path it is for the latest version).
Free AV: - http://files.avast.com/iavs5x/setup_av_free.exe
Pro AV: - http://files.avast.com/iavs5x/setup_av_pro.exe
If you have avast 4.8 pro, you will need to convert the existing license:
- avast! 5/6 Pro license convert from 4.8 Pro license. Try http://www.avast.com/resend-license.php now, fill in the form giving your email and 4.8 Pro License key and they will send the new license file to you (presumably it will check you have a legit 4.8 Pro license first).